Home / 657,207.20-985,810.80-447,255.20

Finding the Fourth Proportional to 657,207.20, 985,810.80 and 447,255.20

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Solution

The fourth proportional to 657,207.20, 985,810.80 and 447,255.20 is: 670,882.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,207.20 : 985,810.80 = 447,255.20 : x
  2. Step 2: Convert to fraction form
    657,207.20/985,810.80 = 447,255.20/x
  3. Step 3: Cross multiply
    657,207.20x = 985,810.80 × 447,255.20
  4. Step 4: Simplify right side
    657,207.20x = 440,909,006,516.16
  5. Step 5: Solve for x
    x = 440,909,006,516.16/657,207.20
  6. Step 6: Final answer
    x = 670,882.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.